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Preparation of polymers with pendant quinonoid groups and their photocrosslinking with visible light irradiation

✍ Scribed by Younsik Cha; Masahiro Tsunooka; Makoto Tanaka

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
552 KB
Volume
31
Category
Article
ISSN
0021-8995

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✦ Synopsis

Photosensitive polymers with pendant quinonoid groups were prepared by the reaction of p-(benzoquinon-2-ylthio)acetic acid (QTAA) or p-(p-benzoquinon-2-ylt~o)be~ic acid (QTBA) with hydroxyethyl methacrylate-methyl methacrylate copolymer. The polymers showed a strong w -d absorption band at around 410 nm and were efficiently crosslinked by visible light irradiation. Somewhat higher photosensitivity of QTAA-bound polymer compared with that of QTBA-bound polymer suggested some contribution of intramolecular hydrogen abstraction of QTAA to the photocrosslinking.

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Preparation of liquid crystalline polyme
Preparation of liquid crystalline polymers with monosubstituted ferrocenyl pendant groups and generation of unpaired electrons by complexation with tetracyanoethylene in the solid state
✍ Hitoshi Tanaka; Takahiro Hongo; H. K. Hall Jr. πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 706 KB

## Abstract Liquid crystalline (LC) polymers with monosubstituted ferrocenyl units in the side chain were prepared by radical polymerizations of the corresponding LC and non‐LC acrylates. It was demonstrated that polymerization is useful for the LC orientation and expands the LC temperature range.